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Plants that reproduce asexually by growth of a new plant from stems or roots show vegetative propagation.

A) True
B) False

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Angiosperms have two separate gametophytes because


A) this is normal for alternation of generations.
B) one can survive and fertilize without the need for external water.
C) the microgametophyte is haploid and the megagametophyte is diploid.
D) these two structures allow fertilization without the need for external water.
E) this is normal for all sexually reproducing plants,where sperm are produced by microgametophytes and eggs by megagametophytes.

F) B) and C)
G) A) and E)

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Seeds contain all of the following EXCEPT


A) an embryo sporophyte.
B) sufficient water for germination.
C) stored food.
D) a seed coat.

E) A) and B)
F) A) and C)

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The microspore develops into a


A) megasporocyte.
B) female gametophyte.
C) microsporocyte.
D) male gametophyte.
E) zygote.

F) None of the above
G) A) and B)

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A moth-pollinated flower is likely to have


A) lightly colored flowers,no landing area,and strong sweet perfume.
B) white flowers with short tubes,a wide landing area,and no odor.
C) blue or yellow flowers,a wide landing area,and not very much odor.
D) blue or yellow flowers,a wide landing area,and no odor.
E) red flowers that open in daytime,a wide landing area,and an odor resembling dead meat.

F) B) and C)
G) B) and E)

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A

Ovules are contained within the


A) ovary.
B) stigma.
C) anther.
D) filament.
E) style.

F) C) and E)
G) A) and B)

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Monocots protect their first true leaves by ________,whereas eudicots protect their first leaves by ________.


A) bending the coleorhiza as the shoot grows through the soil; a surrounding sheath called the coleoptile.
B) providing a protective layer called sepals; surrounding them with endosperm.
C) bending their shoot as it grows through the soil; surrounding them with a protective sheath called the coleorhiza.
D) surrounding them with a sheath called a coleoptile; bending the shoot as it grows through the soil.

E) None of the above
F) A) and D)

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D

All of the following statements about cell suspension cultures are true EXCEPT


A) digitalis,digitoxin,and quinine are produced by cell suspension culture.
B) large numbers of plants are grown and collected from the natural environment to produce chemicals in the laboratory.
C) chemicals are produced and extracted in high concentrations,sometimes from genetically modified cells.
D) cell suspension cultures produce the same chemicals the entire plant produces.

E) A) and B)
F) A) and C)

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Which component of the flowering plant is considered the female portion of the plant?


A) carpel
B) stamen
C) style
D) corolla

E) B) and C)
F) B) and D)

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Why and when is asexual reproduction advantageous in plants?

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Asexual reproduction is advantageous bec...

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A megasporocyte is found in the


A) anther.
B) stigma.
C) ovule.
D) filament.
E) style.

F) B) and C)
G) D) and E)

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Which of the following is NOT a simple fruit?


A) peach
B) pea
C) rice
D) pineapple

E) A) and C)
F) A) and B)

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Many plants are totipotent,which means


A) they are capable of providing their own nutrition,requiring no external nutritional sources.
B) each cell of the plant has the genetic capability of developing into an entire plant.
C) they are incapable of dividing to produce daughter cells.
D) they are metabolically inactive,existing in a state of dormancy.

E) C) and D)
F) All of the above

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Which of the following statements is NOT true about the life cycle of flowering plants?


A) The sporophyte is diploid.
B) The sporophyte produces heterospores.
C) The female gametophyte is the seed.
D) The male gametophyte is the pollen grain.
E) The female gametophyte is retained within the body of the sporophyte parent generation.

F) A) and C)
G) B) and E)

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The transfer of pollen from an anther to the stigma of a carpel is


A) germination.
B) pollination.
C) fertilization.
D) coevolution.

E) A) and D)
F) C) and D)

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B

List the stages,in the correct order,of the development of a eudicot embryo.

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1.zygote formation 2.proembryo...

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Which of the following statements is NOT true about the germinated pollen grain?


A) The generative cell produces two sperm.
B) The pollen tube forms in the style.
C) The tube cell produces the pollen tube.
D) There are two sperm nuclei that move down the pollen tube to the micropyle.
E) Fertilization occurs when the pollen grain germinates.

F) All of the above
G) B) and E)

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Which of the following statements about fruits is NOT true?


A) A blackberry is an example of a simple fruit.
B) A fleshy fruit has a fleshy pericarp,as in a peach.
C) Most fruits are simple fruits,derived from a single ovary.
D) A dry fruit may split at maturity to release its seeds,as in a pea or bean pod.
E) A multiple fruit,such as a pineapple,forms from many individual flowers on a stem.

F) D) and E)
G) A) and E)

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The anther and filament are parts of the


A) pistil.
B) sepal.
C) receptacle.
D) petal.
E) stamen.

F) B) and E)
G) A) and C)

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Explain how the sexual life cycle of flowering plants is adapted to the terrestrial environment.

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Answers may vary.The sexual life cycle o...

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